Hi, I'm Raihan Uddin
About Me
Experienced Java Backend Developer with 6+ years of expertise in building scalable REST APIs using Spring Boot, JWT-based security, and PostgreSQL.
Specialized in Backend for Frontend (BFF) architecture and currently focused on full-stack development with Next JS, Docker, and CI/CD.
Seeking remote backend roles with companies over the world, offering clean code, reliability, and team collaboration.
Current Focus
Quick Facts
Education
BSc in Software Engineering
Daffodil International University, Bangladesh
Graduated: 2019
Work Experience
Senior Software Engineer
CurrentBJIT Ltd
Dhaka, Bangladesh
Key Responsibilities
- Developed and maintained BFF (Backend for Frontend) services in Java 21 and Spring Boot 3, enabling optimized data aggregation and transformation for web/mobile frontends
- Designed and implemented REST APIs tailored specifically for different frontend clients (React, Angular), ensuring separation of concerns and reduced payload size
- Utilized record types and sealed classes in Java 21 to create concise, immutable DTOs and domain models
- Integrated JWT-based authentication and role-based authorization using Spring Security, securing BFF endpoints
- Coordinated with frontend developers to deliver client-specific API responses, simplifying complex domain logic at the backend
- Employed Spring WebClient and RestTemplate for downstream service integration, including timeout handling, retries, and circuit breakers
- Used MapStruct for clean and efficient data mapping between entities and DTOs
- Designed unit tests and integration tests using JUnit 5 and Mockito, achieving high test coverage
- Containerized the BFF service using Docker, and contributed to CI/CD workflows using GitHub Actions
Technologies Used
Java Developer
ServicEngine Ltd
Dhaka, Bangladesh
Key Responsibilities
- Delivered RESTful APIs for internal finance and HR systems
- Collaborated with frontend teams via REST/BFF endpoints
- Designed relational DB schemas and implemented stored procedures
- Participated in Agile/Scrum with code reviews and Git branching strategies
- Built secure and scalable microservices using Spring Boot
- Led migration of legacy monolith to microservices architecture
- Wrote unit/integration tests with 90%+ coverage using JUnit/Mockito
Technologies Used
Java Developer
Merinasoft Ltd
Dhaka, Bangladesh
Key Responsibilities
- Developed a Point of Sale system using Java Swing and MySQL, adhering to OOP principles
- Designed and implemented a Utility Management System using Java Swing and MySQL
Technologies Used
Download My Resume
Get a detailed overview of my experience, skills, and accomplishments
Featured Projects
B2B E-Commerce
In ProgressFull-stack B2B shop with user/admin roles, order management, product catalog, JWT auth, cart checkout, and admin dashboard with charts.
Key Features
Technologies
Microservices Based Application
Microservices Based Application
CompletedLed the migration of a legacy monolithic application to microservices architecture, improving scalability and maintainability.
Key Features
Technologies
BFF Service for Multi-Platform Frontend
BFF Service for Multi-Platform Frontend
CompletedBackend for Frontend service optimizing API responses for React and Angular applications, reducing payload size by 40%.
Key Features
Technologies
Technical Skills
My comprehensive skill set spanning backend development, databases, DevOps, and modern software architecture patterns.
Backend Development
Databases
Frontend
DevOps & Tools
Testing
Architecture & Patterns
Development Tools & IDEs
Tools I use daily for development, debugging, and project management
90%+ Test Coverage
Committed to writing comprehensive unit and integration tests
Performance Focused
Optimizing applications to serve 100K+ monthly users efficiently
Team Collaboration
Experienced in Agile methodologies and cross-functional teams
Let's Work Together
I'm actively seeking remote backend roles with companies around the world. Let's discuss how I can contribute to your team's success.
Get In Touch
Location
Dhaka, Bangladesh
Available for remote opportunities
What I'm Looking For
- Remote Backend Developer positions
- Companies with a focus on Java/Spring Boot
- Microservices architecture projects
- Collaborative development teams
- Growth-oriented organizations